Amazon Wireless and Radio Shack offer free shipping, although both do come with the standard upgrade or activation fees. Depending on your shipping zip code, you might save a bit on sales tax if you order from Amazon, but if you have your heart set on the white EVO 3D, you are stuck with Radio Shack. Just order before October 15, as this price isn't guaranteed by Radio Shack after that.
Any way you look at it, this is a great deal!
[Amazon Wireless | Radio Shack]